Create a Tenant in vRealize Automation that leverages vRealize Business Standard:

Specify an Identity Source

Specify a tenant admin

Assign vRealize Business roles:

Business Management Administrator

Business Management Read only

Business Management Controller

Add one or more virtual environments to vRealize Business Standard

Add one or more vCenter Server instances to vRealize Business Standard

Update the Reference Database

Information in this post uses vRealize Business for Cloud (7.2) as it is the only version compatible with vRealize Automation 6.2 and vSphere 6.5 (which is what my homelab runs on). The steps shown will be SIMILAR but may not be IDENTICAL with vRealize Business Standard (6.x).